Now a days every smartphone user knows about the use of Bluetooth, Its the easy and simple way of sharing anything between devices without any type of wires .Bluetooth is the Technology to transfer and exchange data from one source to another through wireless mechanism .Basically we can use Bluetooth for exchanging within limited distances using short wave length probably its the radio waves which is called as UHF (Ultra High Frequency).
UHF is the radio frequencies which ranges between the frequencies of between 300 MHz to 3 GHz.This UHF radio wave creates the PAN (Personal Area Network) which where get used as the Bluetooth technology.Bluetooth originally named as the Short-link radio technology which were initiated in the year of 1998 by the Nils Rydbeck for the Ericsson Mobile in Sweden.The name Bluetooth were named from the name of king of Denmark and Norway called Harald Bluetooth.There are so many Bluetooth versions the latest version is Bluetooth 5.0 which which has more compatibility than the previous versions, it gradually result in the speed of transferring and connecting fast.